Question

In a mature dicot stem. which has undergone secondary growth, the youngest layer of secondary xylem is situated

• A. In between pith and primary xylem
• B. Just outside the vascular cambium
• C. Just inner to the vascular cambium
• D. Just inner to the phellogen

Answer 1

Answer: (C)

Just inner to the vascular cambium

secondary xylem is also called wood. Any tissue located to the "outside" of the vascular cambium is considered bark and tissue side is called as wood.

So the correct option is 'Just inner to the vascular cambium.'